diff --git a/.github/workflows/delete_backport_branch.yml b/.github/workflows/delete_backport_branch.yml
index ad1560c3bf..a97d2674e4 100644
--- a/.github/workflows/delete_backport_branch.yml
+++ b/.github/workflows/delete_backport_branch.yml
@@ -1,13 +1,18 @@
-name: Delete merged branch of the backport PRs
-on: 
+name: Delete merged branch of the PRs
+on:
   pull_request:
     types:
       - closed
-  
+
 jobs:
   delete-branch:
     runs-on: ubuntu-latest
-    if: startsWith(github.event.pull_request.head.repo.full_name, 'peterzhuamazon/documentation-website')
+    if: |
+      startsWith(github.event.pull_request.head.repo.full_name, 'opensearch-project/documentation-website') &&
+      ${{ !startsWith(github.event.pull_request.head.ref, 'main') }} &&
+      ${{ !startsWith(github.event.pull_request.head.ref, '1.') }} &&
+      ${{ !startsWith(github.event.pull_request.head.ref, '2.') }} &&
+      ${{ !startsWith(github.event.pull_request.head.ref, 'version/') }}
     steps:
       - name: Echo remove branch
         run: echo Removing ${{github.event.pull_request.head.ref}}